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Finding the Fourth Proportional to 265,786.40, 398,679.60 and 167,482.40

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Solution

The fourth proportional to 265,786.40, 398,679.60 and 167,482.40 is: 251,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,786.40 : 398,679.60 = 167,482.40 : x
  2. Step 2: Convert to fraction form
    265,786.40/398,679.60 = 167,482.40/x
  3. Step 3: Cross multiply
    265,786.40x = 398,679.60 × 167,482.40
  4. Step 4: Simplify right side
    265,786.40x = 66,771,816,239.04
  5. Step 5: Solve for x
    x = 66,771,816,239.04/265,786.40
  6. Step 6: Final answer
    x = 251,223.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.